Annual mean 13°C · wettest around December · prevailing wind W
Warmest
28.6 °C
Coldest
1.8 °C
Wettest
17%
Windiest
4.3 m/s
Prevailing
W
3.5 m/s average
When this place is good five ratings · thirty-six ten-day sections · click a cell to read it
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Every reading
bars actual · line feels-like, °Cchance of rain, %wind speed, m/ssky covered, %
The average temperature in Mahwah over the whole year is 13°C. July is the hottest month, with highs of about 28°C; January is the coldest, with lows of about -1°C. Mahwah has no sharply defined rainy season: the chance of rain on a given day runs from 16% in June, the driest month, to 21% in December, the wettest. Winds in Mahwah are highest in March, averaging 3.4 m/s (12 km/h), and lightest in July, at 2.1 m/s (8 km/h). The prevailing wind is from the W. The clearest skies in Mahwah come in November, when the sky is typically 41% covered; May is the cloudiest month, at 52%.
Month by month Mahwah climate by month: average temperatures year round · click a month to read it
Month
High
Low
Feels like
Chance of rain
Cloud
Wind
Being outside
Sun
Walking
January
2°C
-1°C
-3°C
18%
52%
3.1 m/s
1
0
8
February
4°C
-0°C
-1°C
20%
49%
3.0 m/s
2
0
15
March
8°C
3°C
3°C
19%
48%
3.4 m/s
7
0
32
April
14°C
7°C
10°C
19%
52%
3.2 m/s
23
2
59
May
19°C
13°C
17°C
20%
52%
2.6 m/s
58
14
70
June
25°C
18°C
24°C
16%
43%
2.4 m/s
68
41
41
July
28°C
22°C
29°C
18%
42%
2.1 m/s
33
65
9
August
27°C
20°C
28°C
18%
42%
2.1 m/s
48
60
18
September
23°C
16°C
23°C
17%
45%
2.2 m/s
72
32
51
October
17°C
11°C
15°C
18%
48%
2.3 m/s
52
8
74
November
10°C
5°C
6°C
17%
41%
2.7 m/s
13
0
43
December
5°C
1°C
-0°C
21%
50%
2.8 m/s
1
0
15
High and low are the warmest and coolest of four readings a day — midnight, 6am, noon and 6pm — so a true overnight low can sit a degree or two under them. Chance of rain, cloud and wind are the day’s average; feels-like and the three ratings (each out of 100: Good from 55, Ideal from 80) are read at midday.
Seasons, and the year in short Mahwah weather by season
Year round, Mahwah has days of about 2°C at their warmest in January, its coolest month, and 28°C in July, its warmest; the coolest hours of the day run from -1°C to 22°C through the year, and the average temperature over the year is 13°C around the clock. Rain is most likely around December and least likely around June. Every figure here is a decade of observations blended into one representative year, so it reads as what this date is usually like, not a forecast for one particular day.
Mahwah weather in winterDecember to February
High 4°CLow -0°CRain 20%
Winter in Mahwah has typical daily highs of about 4°C and lows of about -0°C, with a 20% chance of rain on a given day.
Mahwah weather in springMarch to May
High 14°CLow 8°CRain 19%
Spring in Mahwah has typical daily highs of about 14°C and lows of about 8°C, with a 19% chance of rain on a given day.
Mahwah weather in summerJune to August
High 27°CLow 20°CRain 17%
Summer in Mahwah has typical daily highs of about 27°C and lows of about 20°C, with a 17% chance of rain on a given day.
Mahwah weather in autumnSeptember to November
High 17°CLow 11°CRain 18%
Autumn in Mahwah has typical daily highs of about 17°C and lows of about 11°C, with a 18% chance of rain on a given day.
When is the rainy season in Mahwah?
Mahwah has no sharply defined rainy season: the chance of rain on a given day runs from 16% in June, the driest month, to 21% in December, the wettest.
What time of year is Mahwah windiest?
Winds in Mahwah are highest in March, averaging 3.4 m/s (12 km/h), and lightest in July, at 2.1 m/s (8 km/h). The prevailing wind is from the W.
What is the average temperature in Mahwah year round?
The average temperature in Mahwah over the whole year is 13°C. July is the hottest month, with highs of about 28°C; January is the coldest, with lows of about -1°C.